Adding old title #40 as tooltip on schedule

Signed-off-by: José Luis Di Biase <josx@interorganic.com.ar>
adds a 'type' option to MediaListView

See discussion at e080b8e37fe229f0a94c8264964fe0fd1b5b24e1

Now we have four types of MediaListView:
  - playlist-sortable (like the current playlist on Edit Playlists)
    has full drag and drop, can edit name and remove elements
  - playlist-draggable (like the left pane on Edit Playlists)
    cannot edit name nor remove elemens, dragging is enabled
  - playlist-searchable (like the one on Browse Medias)

As a side effect the duration bar was restored.
Adding trash support to remove from playslist #37

Signed-off-by: José Luis Di Biase <josx@interorganic.com.ar>
Merge branch 'crear/kb' of github.com:inaes-tic/mbc-playout into crear/kb